Precision-engineered highway maintenance systems built for maximum durability, thermal efficiency, and micro-precision application.
Founded by a distinguished panel of professors from Chang'an University—China’s premier institution for highway engineering and mechanical technology—HEM Group (originally Xi'an Hongda Communications Technology Co., Ltd.) represents over two decades of technical authority in road pavement machinery.
We specialize in solving critical infrastructure challenges: pavement oxidation, moisture intrusion, structural fatigue, and aggregate stripping. Our scientific R&D breakthroughs span mechanical dynamics, precision engine power matching, high-pressure hydraulic transmission systems, and intelligent digital electronic control units.
In 2006, HEM was official recognized as a certified "High-tech Enterprise" by the Shaanxi Provincial Department of Science and Technology. To serve our global client network, HME TOP Machinery Equipment Co., Ltd. was established in 2017 to handle international OEM technical customization, export compliance, and cross-border field support.
Understanding Preventive Maintenance Dynamics, Bituminous Binding Mechanics, and Asset Life Extension
Road pavement degradation is driven by UV oxidation, thermal expansion, and water infiltration. Sealing road equipment—such as synchronized chip sealers and slurry pavers—applies a protective elastomeric wearing course. This prevents water penetration into the sub-base, delaying costly structural overhaul by 7 to 12 years and reducing overall pavement lifecycle costs by up to 45%.
Standard asphalt binders suffer from rutting at high temperatures and brittle cracking under zero-degree conditions. Our proprietary OEM modified asphalt plants seamlessly blend Styrene-Butadiene-Styrene (SBS) and Crumb Rubber (CRMB). This enhances viscosity, elastic recovery, and shear strength, guaranteeing high-performance sealing even under extreme axle loads.
Addressing modern carbon emission standards, CIPR machinery mills existing damaged asphalt layers, mixes aggregate with emulsified asphalt and cement on-site, and repaves the base layer in a single continuous pass. This eliminates raw material transportation costs, recycles 100% of Reclaimed Asphalt Pavement (RAP), and slashes carbon footprints by 60%.
| Technology / Equipment | Layer Thickness | Primary Application | Key Engineering Benefit | Lifecycle Extension |
|---|---|---|---|---|
| Synchronous Chip Sealer | 4mm – 10mm | Highways, Rural Roads, Arterials | Simultaneous binder & aggregate distribution prevents stone loss | 5 – 8 Years |
| Slurry Seal / Micro-Surfacing | 3mm – 12mm | Urban Streets, Runway Maintenance | Fills ruts, restores skid resistance, rapid curing under traffic | 6 – 10 Years |
| Polymer Modified Asphalt Plant | Batching System | High-Volume Expressways, Extreme Climates | Elevates softening point > 85°C, enhances low-temp ductility | 10 – 15 Years |
| Cold In-Place Recycler (CIPR) | 80mm – 150mm | Structural Rehabilitation & Rebuilding | Zero virgin material requirement, 100% RAP recycling efficiency | 12 – 18 Years |
From heavy earthmoving and primary aggregate screening to micro-surfacing and automated paving.
Computer-controlled computer spray bars featuring radar speed tracking and automatic flow adjustment. Ensures accurate spray rates down to ±1.5% accuracy regardless of truck speed fluctuations.
Heavy-duty cold milling machines for precise layer removal, coupled with non-contact paver feeders to eliminate thermal and material segregation during continuous paving operations.
Specialized attachments and standalone units engineered to lay aggregate and asphalt on shoulders, trenches, and widening lanes with adjustable discharge widths.
High-horsepower track-type tractors designed for earthmoving, land clearing, and sub-grade compaction in rugged mining and highway building terrains.
Fuel-efficient crawler excavators optimized for urban trenching, utility maintenance, foundation excavation, and agricultural road development.
Specialized emergency rescue and mountain construction machines featuring articulated hydraulic legs capable of operating on steep 45° slopes and marshlands.
Watch our heavy-duty road machinery performing high-precision bitumen spraying, aggregate distribution, and asphalt recycling across real-world civil engineering sites.
Delivering robust engineering support, localized spare parts distribution, and tailored OEM customizations worldwide.
Dedicated technical hubs and spare parts warehouses established across Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, and Sri Lanka ensure rapid response and localized assistance.
Full-scale engineering customization: chassis adaptation, burner fuel choices (Diesel, Heavy Oil, LNG), tank capacities, and heating oil circuits optimized for tropical, arid, or sub-zero freezing environments.
Our expert support team offers round-the-clock online telemetry troubleshooting, remote PLC system updates, and rapid dispatch of certified field engineers for on-site commissioning and operator training.
Pioneering the Transition to IoT Fleet Telematics, Autonomous Spraying, and Circular Asphalt Economies
Next-generation sealing road machinery is being integrated with 5G CAN-bus cloud controllers. Real-time viscosity feedback, GPS-guided nozzle metering, and automated overlap prevention eliminate manual operator error, ensuring uniform binder coverage down to the exact gram per square meter.
Aligning with global net-zero goals, our R&D team is developing warm-mix asphalt modification units and bio-based emulsifiers capable of reducing manufacturing temperatures by 30°C. Combined with high-efficiency Cold In-Place Recycling, future projects will achieve near-zero carbon emission profiles.
Comprehensive engineering and procurement insights for contractors, municipal authorities, and equipment distributors.
A standard bitumen distributor sprays hot liquid asphalt binder onto the road surface, after which a separate chip spreader distributes aggregate chips. A synchronous chip sealer performs both operations simultaneously through a single computerized chassis. This ensures aggregate chips are embedded into the hot binder within milliseconds of application, preventing binder cooling and guaranteeing superior stone adhesion.
Adding polymers (like SBS) or ground tire rubber (CRMB) creates an interconnected polymer network within the asphalt matrix. This raises the binder's softening point to withstand summer heat rutting while increasing elastic recovery and ductility during freezing winters. The result is a crack-resistant seal coat that lasts up to 50% longer than conventional straight-run asphalt seals.
We provide full customization according to client specifications: truck chassis mounting (DONGFENG, HOWO, SHACMAN, ISUZU, MAN), asphalt tank capacities (from 4,000L to 16,000L), heating media choices (thermal oil jacketed vs. direct diesel burner), PLC user interfaces (multi-language touchscreens), and customized spray bar extension widths up to 6 meters.
CIPR eliminates the cost of purchasing virgin aggregates and long-haul transportation by processing existing pavement materials directly on the road site. The recycled material is pulverized, injected with bitumen emulsion or foam binder, compacted, and sealed. This cuts material costs by up to 50% and minimizes traffic disruption caused by traditional mill-and-replace methods.
Our heavy equipment power systems can be configured to comply with regional environmental standards, including Euro 3, Euro 5, EPA Tier 4 Final, and EU Stage V emissions regulations. We handle complete export logistics, including CE documentation, ISO9001 quality audits, and customs documentation for international shipping.
Explore our additional line of high-performance mixing plants, milling units, and earthmoving excavators.
HME Machinery
